亚洲 欧美 变态 另类 综合_两个人看的www高清免费_久久久久人妻精品区一三寸_肉岳疯狂69式激情的高潮

pp板材使用(yong)(yong)(yong)方法遍及pp板材常識，pp板材的(de)(de)特(te)征! pp板材具(ju)(ju)(ju)有(you)杰(jie)出的(de)(de)焊接(jie)功用(yong)(yong)(yong)，管(guan)(guan)(guan)(guan)材、管(guan)(guan)(guan)(guan)件(jian)可采用(yong)(yong)(yong)熱(re)熔和(he)(he)電(dian)(dian)熔聯接(jie)，設(she)(she)備(bei)(bei)便當(dang)，接(jie)頭可靠(kao)，其聯接(jie)部位的(de)(de)強度(du)(du)(du)大于(yu)管(guan)(guan)(guan)(guan)材自身的(de)(de)強度(du)(du)(du)。回收料用(yong)(yong)(yong)量不(bu)超越總量10%，不(bu)影響產品(pin)質量。 pp板材除了具(ju)(ju)(ju)有(you)一般(ban)塑料管(guan)(guan)(guan)(guan)重量輕、耐侵(qin)蝕、不(bu)結(jie)垢、運用(yong)(yong)(yong)壽命長等特(te)征外，還具(ju)(ju)(ju)有(you)以下主要特(te)征： 無毒、清洗。 PP-R管(guan)(guan)(guan)(guan)導熱(re)系數(shu)為0.21w/mk，僅為鋼管(guan)(guan)(guan)(guan)的(de)(de)1/200。 PP-R的(de)(de)材料分子(zi)只(zhi)要碳、氫元素，沒有(you)有(you)害(hai)有(you)毒的(de)(de)元素存在，清洗可靠(kao)，不(bu)只(zhi)用(yong)(yong)(yong)于(yu)冷(leng)熱(re)水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)道，還可用(yong)(yong)(yong)于(yu)貞潔飲用(yong)(yong)(yong)水(shui)(shui)(shui)系統。 保溫(wen)節能。物料可回收運用(yong)(yong)(yong)。 PP-R廢物經清洗、破(po)碎后回收運用(yong)(yong)(yong)于(yu)管(guan)(guan)(guan)(guan)材、管(guan)(guan)(guan)(guan)件(jian)出產。 pp板材特(te)征：具(ju)(ju)(ju)有(you)高(gao)(gao)剛(gang)度(du)(du)(du),高(gao)(gao)硬(ying)度(du)(du)(du)和(he)(he)高(gao)(gao)強度(du)(du)(du),但缺(que)口抗沖擊(ji)韌一般(ban).PP 材料能接(jie)受(shou)張拉應力并易焊接(jie).低溫(wen)時變脆,化(hua)(hua)學不(bu)亂性和(he)(he)電(dian)(dian)氣功用(yong)(yong)(yong)優(you)異.工作溫(wen)度(du)(du)(du)從0度(du)(du)(du)到(dao)100度(du)(du)(du).特(te)性：密度(du)(du)(du)低;耐熱(re),不(bu)變形;高(gao)(gao)剛(gang)度(du)(du)(du);高(gao)(gao)表面強度(du)(du)(du);化(hua)(hua)學不(bu)亂性好(hao)(hao);無毒無害(hai); 運用(yong)(yong)(yong)： 泵閥部件(jian),飲用(yong)(yong)(yong)水(shui)(shui)(shui)污水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)道,密封件(jian),噴涂載體,耐侵(qin)蝕槽、桶(tong),耐酸堿(jian)工業用(yong)(yong)(yong),廢水(shui)(shui)(shui),廢氣排(pai)放(fang)設(she)(she)備(bei)(bei)用(yong)(yong)(yong),洗刷塔(ta),無塵(chen)室(shi),半(ban)導體廠及其相關工業之(zhi)設(she)(she)備(bei)(bei)和(he)(he)機(ji)器(qi)(qi),食物機(ji)械及斬板,電(dian)(dian)鍍工藝,玩具(ju)(ju)(ju)部件(jian),牙醫用(yong)(yong)(yong)導管(guan)(guan)(guan)(guan),廣泛用(yong)(yong)(yong)于(yu)化(hua)(hua)工,機(ji)械,電(dian)(dian)器(qi)(qi)及電(dian)(dian)子(zi)工業等規(gui)劃材料. 尺度(du)(du)(du)： 板材：厚x寬(kuan)x長=2 pp板材具(ju)(ju)(ju)有(you)強度(du)(du)(du)高(gao)(gao)、耐溫(wen)、防腐功用(yong)(yong)(yong)好(hao)(hao)、可進行填充、增強、增韌、增剛(gang)、阻燃、改性,表面可壓花(hua)、磨砂(sha). pp塑料板特(te)征耐熱(re)性好(hao)(hao)、電(dian)(dian)絕緣功用(yong)(yong)(yong)可靠(kao)、無毒、機(ji)械強度(du)(du)(du)高(gao)(gao)，具(ju)(ju)(ju)有(you)很(hen)好(hao)(hao)的(de)(de)化(hua)(hua)學不(bu)亂性。設(she)(she)備(bei)(bei)便當(dang)，聯接(jie)可靠(kao)。